"How do they plan on paying for this if Teck walks?"

Depending on how extensive a drilling program they plan to have; but there is no immediate shortage of cash for CUU.

At the end of the last Q, they have $5 M in the bank; since then EE has committed $2.5 M and another $0.5 M from some other investor(s). So they should have about $7.5 M left after the current Q's expense of $500 K. We don't know how much they have already spent on the FS; and this will be refunded by Teck once CUU produce the detail list of expenses to produce the FS; that could be a couple of millions coming back from Teck. So they may end up with close to $10 M in the bank.

If Teck backs in, even for 20%, it will immediately solve any financing problem for the drilling program since if they do, they would have to spend at least $90 M in developing SC.

That's why I don't think Management is too concerned yet with their cash position; not yet. JMO